Quarter	US dollars
2004-12-31	119097
2005-03-31	123468
2005-06-30	158156
2005-09-30	217525
2005-12-31	227447
2006-03-31	244747
2006-06-30	243823
2006-09-30	249156
2006-12-31	275628
2007-03-31	291517
2007-06-30	312958
2007-09-30	357099
2007-12-31	374898
2008-03-31	391512
2008-06-30	406741
2008-09-30	404255
2008-12-31	372193
2009-03-31	362193
2009-06-30	369056
2009-09-30	386922
2009-12-31	390397
2010-03-31	409632
2010-06-30	447786
2010-09-30	483816
2010-12-31	501558
2011-03-31	503203
2011-06-30	530004
2011-09-30	503181
2011-12-31	489024
2012-03-31	500522
2012-06-30	498231
2012-09-30	506182
2012-12-31	505614
2013-03-31	503009
2013-06-30	490627
2013-09-30	507777
2013-12-31	502382
2014-03-31	514941
2014-06-30	520785
2014-09-30	515178
2014-12-31	506576
2015-03-31	493216
2015-06-30	488985
2015-09-30	459730
2015-12-31	448577
2016-03-31	442819
2016-06-30	441411
2016-09-30	411850
2016-12-31	393542
2017-03-31	417125
2017-06-30	379846
2017-09-30	382435
2017-12-31	388077
2018-03-31	391637
2018-06-30	372214
2018-09-30	368180
2018-12-31	372032
2019-03-31	385116
2019-06-30	394973
2019-09-30	394316
2019-12-31	402673
2020-03-31	391209
2020-06-30	389545
2020-09-30	386828
2020-12-31	407926
2021-03-31	408633
2021-06-30	425806
2021-09-30	418852
2021-12-31	426861
2022-03-31	424076
2022-06-30	419699
2022-09-30	401482
2022-12-31	409610
2023-03-31	409525
2023-06-30	408471
2023-09-30	396510